Hoisting-bucket.



' No. 734,433,- PATENTED JULY 21 1903.,

.G.L.SAUNDER&

HOISTING BUCKET. APIfLIGATION FILED SEPT. 17, 1902.

N0 MODEL. 4 $HEETS-SHEET. 1

,B v ,Zkzverrio1i Wii 21. 6 6-5 613' c .1 Wi

THE 'Nonms PETERS cu mnom-uwa, wunmcmu. n. c.

Nb. 73% ,433. PATENTED JULY 21, 1903. 0. L. SAUNDERS. I

nols'rme BUCKET;

APPLICATION FILED SEPT. 17. 1902. I. I $0 MODEL. f1 SHEETS-SHEET 3.

' No. 734,433. PATENTEDJU'LY 21,1903.

. 0. L. SAUNDERS. HOISTINGBUGKET.

APPLIOATION FILED SEPT. 17, 1902.

N0 MODEL.

4SHBETS-SHBET 1' m'finenSJeJ I 4 jzv efzfo n (i /o THE Norms Pcfzns on,HOTO-UTHO" WA$HINGTON. n. c:

Patented July 21, 1903f PATENT O FICE.

CECIL L. SAUNDERS, on CLEVELAND,

OI-IIO, ASSIGNOR TO JOHN MQMYLER,

OF CLEVELAND, OHIO. ,7

HOSTING-BUCKET.

SPECIFICATION forming part of Letters Patent No. 734,433, dated July 21,1903. Application filed September 17, 1902. Serial N0.123,771. (Nomodel.)

.10 It is customary to employ a bucket for unloading ore from cars andvessels, and-these buckets frequently have two scoops'which are drawntogether in the ore by means of suitable ropes which are connected toany I source of power. Buckets of this character heretofore have hadcertain disadvantages, the principal one of which is the fact that whenthe two scoops are drawn together it requires too much power, and manytimes the cutting edges of the scoops hang upon the floor-boards of thecar or vessel and do not close completely, thus spilling the load andfrequently not gathering any load at all, as well as injuring the floor.4 It is the primary object of this invention to obviate thesedifficulties by arranging, a

bucket wherein the scoop will clo'sein substantially a horizontalposition and the cutting edges will slide upon the boards of the 0bottom of the car or vessel without injuriously scraping them.

It is also an object of the invention described herein to arrange thescoops so that they will form a chute or hopper when emptyingthe loadinorder that thedischarge therefrom will be concentrated.

The invention may be best summarized as consisting in theconstruction'and combination of parts to the above ends, as hereinaf- 0ter described, and pointed out definitely in the claims. 5 V

7 Referring to the drawings, Figure 1. is a side elevation of .my,improved. bucket closed. Fig; 2 is an end view thereof; Fig. 3, a sideelevation of the'bucket in an open position; Fig. 4, a section on line4. 4 of Fig. 3; Figs.

5, 6, and '7,;diagrammatic views showing modified forms of my invention;Fig. 8, a side elevation of still another modification; Fig.

9, a top plan view of the bucket shown in Fig. 8, and Fig. .10 a sideelevation of Still anupon this shaft a for they purpose of receivingtheropes which close the bucket. Mounted in suitable bearings are two othershafts a one on either side of the drum a These shafts project from theoutside of the frame a suitable distance for receiving links. Segments aare keyed to each of the shafts a for the purpose of rocking the same,and arms 0. are also keyed to the shaft a adjacent to the frame andextend downward in the position shown in Fig. 1. Sheaves a, are providedon the ends of these arms and rotate upon a shaft e which extends fromone arm on oneside of the frame to a corresponding arm on the oppositeside thereof and project a sufficient distance from either side toengage the links which support the scoops.

.On the ends of the shafts a are keyed short arms a to which are pivotedlinks a. These links are in turn pivoted to the forward portion of thescoops B. Links a are loosely mounted upon the ends of the shafts a andare pivoted in turn to the rear portion of the scoops B. There are twoarms a and two short arms a for each one of .the shafts a There are alsotwo sets of the links (1 and a on either side of the frame and connectedto the scoops.

The operating-ropes are connected to the scoops inthe following manner:The closingrope 6 passes down in the groove of the sheave a and aroundthe drum a several turns. Separate ropes b are connectedffrom each oneof the smaller drums around, the corresponding sheave -on one of thearms a and fastened to the opposite scoop adjacent to the pivotal pointof the link e The arrangement of the closing-rope b and the ropes b issuch that when the power is applied to the former each of the ropes bwillbe wound upon their respective drums and the scoops will be drawntogether.

The opening means which is provided in this instance consists of asingle rope having two portions b 17 which pass in opposite directionsaround the sheaves a a One of these ropes is fastened to one of thesegments a and the segments are so keyed upon the shaft a that when thebucket is in a closed position power applied to the rope will rock eachshaft at until the ends of the shaft a engage the twolinks a, fastenedto the rear of the scoops, and pull the same until each scoop is in theposition shown in Fig. 3, the

- ropes 5 having been unwound from the small drums and the closing-ropeZ) having been wound upon the large drum a. The bucket is now inposition to take its load.

The bucket in its open position is letdown into the ore or othermaterial and power applied to the closing-rope b. The rope I) will tendto unwind from the drum a and the unwinding of this drum rotates thesame, and hence rotates the small drums on either side thereof. Thisoperation winds the ropes 1) upon said small drums, pulling each ropearound its sheave a and exerting the pulling force upon the forward endof the opposite scoop. It will be seen that upon the first pull of therope Z) on the sheave a the arms a" will rock the shafts u until theends of the shafts a engage the forward links at, bringing the scoopsinto the position shown in Fig. 3 in dotted lines. Then the buckets willbe drawn substantially upon the shafts a as a pivot until the short armse engage the stops a secured to the side of the frame, when the arms awill beheld from further inward movement and the rope b will pull thescoops closed. When the short arms 0. strike the stops a and the scoopsare being closed by the ropes b, the movement is substantiallyhorizontal, as indicated by the dotted line Z7 in Fig. 3, thus allowingthe cutting edges of the scoops to travel toward each other and cutthrough the material rather than scrape it up, which would be the resultshould the scoops not be thrown into this horizontal position.

In the modification shown in Fig. 5 two cross-shafts C and C areprovided on each side of the center, and arms 0' 0 carrying sheaves 0are keyed to each one of these shafts. Short links C and C are alsokeyed to the shafts O and C and are connected by links 0 and c to thefront and rear of each scoop O. The closing-ropes c in this instancepass from each one of the small drums c on the main shaft 0 out to thesheave c on the furthermost arm 0 across to the sheave c on theinnermost arm 0 on the opposite side of the center, and from thence tothe front end of the scoop.

Fig. 6 is also a modification, showing the front ends of the scoops Dsupported by the links (Z, pivoted at their upper ends to the frame.(Not shown.) A cross-shaft (Z is mounted on each side of the center ofthe frame. To each one of these shafts (Z is keyed veaaea an arm (1carrying a sheave 01*, and a short arm d which is connectedby a link (1to the rear end of each scoop. Each one of the openingropes d in thisinstance passes down around asegmentd, mounted upon one of the shaftscl. The closing-ropes (1 pass from the small drumscl a roundtheirrespective sheaves cl to the forward ends of the scoops.

In the construction shown in Fig. 7 the parts are similar to thosedescribed in Fig. 1, with the exception that the scoops E haveupwardly-extending portions 6, which are pivoted to the frame E.

Figs. 8 and 9 represent another modification and show the short arms fofsuch a length and in such a position that the links f, connecting themwith the forward ends of the bucket, are in substantially a verticalline, and they also show the links f f which support the rear ends ofthe scoops, pivoted at a point on the frame which is separate from thepivotal point of the short link. It will be seen from these figures thatwhen the short arms engage the stops f each scoop will then cease to godown into the material, but will slide in fiat. In this construction ashaft f is provided at each end of the frame and extends out beyond thesides thereof, so as to form a pivot for the links f Upon each of theshafts f are two idle sheaves f f. Each pair of these sheaves, with theidle sheaves f upon the shaft f at the lower ends of the arms f forms aconstruction for a three-part line for pulling upon the arms f. In operating the bucket according to this construction each opening-rope f ispassed around its respective sheave in the head, around one of thesheaves on the shaft f, around the sheave f upon the shaft f back againto the other sheave upon the shaftf and is secured to the shaft f.

Fig. 10 is still another modification and shows the bucket constructedalong the lines of that shown in Fig. 1, except that the short arms gare provided with other short arms g, which are connected by links 9 forthe purpose of closing the scoops in unison. It will be seen from thisconstruction that any movement of either of the short arms 9 will beconveyed to the other through this link g I claim- 1 1. In ahoisting-bucket, the combination with the frame of a powcrdriven shaft,a scoop, two links pivoted to the frame and pivoted to said scoop, onein advance of the other, and connections between said powerdriven shaftand said scoop to cause it to be first shifted upon the lower end of therear link as a pivot and then shifted upon the pivots of both of saidlinks, substantially as described.

2. In a hoisting-bucket, the combination with the frame of anoperating-shaft, scoops, links pivoted to said frame and also pivoted tosaid scoops, mechanism for controlling the forward ends of said scoops,whereby they will form a hopper when being emptied and whereby they willtravel flat when being larms, and suitable stops for said short arms,

closed, and connections between said operating-shaft and saidscoop-controlling mechanism substantially as described.

3. In a hoisting-bucket, the combination with the frame, ofscoopspivoted to said frame, a rock-shaft provided in each end of the frame,connections between said rookshaft and the front ends of said scoops forcontrolling the same, whereby the front ends may be dropped when openedand whereby the scoops will travel in substantially flat when beingclosed, and means for operating said rock-shaft, substantially asdescribed.

4. In a hoisting-bucket, the combination, with the frame, of scoopspivotally carried by said frame, arms pivotally carried by said frame,links connecting said arms with the forward ends of saidscoops, andmeans for moving said arms so as to drop the front of said scoops whenthey are being opened, substantially as described.

5. In a hoisting-bucket, the combination,

' with the frame, of scoops, links pivoted to said frame and alsopivoted to said scoops near their rear ends, arms pivotally carriedbysaid frame, other links connecting said arms and the forward ends ofsaid scoops, and means for moving said arms to raise the front edge ofthe bucket as it is being closed, substantially as described.

6. In a hoisting-bucket, the combination, with the frame, of scoops,links pivoted to said frame and also pivoted to said scoops at theirrear ends, a rockshaft mounted in either end of said frame, short armsrigid on said rock-shafts, links connecting saidshort arms and theforward ends of said scoops, means for rocking said shaft so as to dropthe front of said scoops when they are being opened and so as to bringthe buckets in substantially flat when being closed, substantially asdescribed.

7. In a hoisting-bucket, the combination, with the frame, of scoopspivotally carried thereby, arms pivotally carried by the frame, linksconnecting said arms to the forward ends of said scoops, other armsrigid with the arms first mentioned, said latter arms being adapted toswing some distance independently of said links or engage the same, andmeans for moving said last-mentioned arms, substantially as'described.

8. In a hoisting-bucket, the combination, with the frame, of scoops,links pivoted to the rear ends of said scoops, said links being in turnpivoted to the frame,arock-shaft mounted in each end of said frame,short arms rigid with said rock-shafts, links pivoted to said short armsand to the forward ends of said scoops, arms pivoted to said rock-shaftsfor operating the same, means for operating said substantially asdescribed.

9. Ina hoisting-bucket, the combination, with the frame, of scoopspivotally carried thereby, arms pivotally carried by the frame, linksconnecting said arms to the forward ends of said scoops, other armsrigid with the arms first mentioned, said latter arms being adapted toswing some distance independently of said links or engage the same,sheaves on the ends of said last-mentioned arms, and cables playingaround said sheaves, substantially as described.

10. In a hoisting-bucket, the combination, with the frame, of scoopspivotally carried at their rear thereby, links supporting the forwardends of said scoops, arms to operate said scoops, sheaves in the ends ofsaid arms, ca-

bles playing around said sheaves, a pair of drums adapted to wind insaid cables, and means for rotating said drums, substantially asdescribed.

11. In a hoisting-bucket, the combination, with the frame, ofrock-shafts in either end of the same, links also pivoted to either endof said frame, scoops pivoted at their rear ends to said links, shortarms carried by said rock shafts, links between said short arms and theforward ends of said scoops, other arms carried by said rock-shafts,sheaves on the ends thereof, a closing drum mounted in said frame, smalldrums rigid with said closing-drum, ropes adapted to be wound upon saidsmall drums and passing around said sheaves and secured to the forwardends of said scoops, said ropes being adapted to operate saidrock-shafts in one direction to close the bucket, means for rocking saidshaft in said short arms, substantially as described.

I00 the contrary direction, and suitable stops for x 12. In ahoisting-bucket, the combination,

pivoted to the lower ends to said links, short arms on said rock-shafts,links connecting said short arms with the forward ends of saidscoops,operating-arms also on said rock-shaft,

sheaves carried by said operating-arms, asegment on each one of saidrock-shafts, suitable ropes secured to said small drums and passingaround said sheaves and connected to the forward ends of said scoops,substantially as described.

In testimony whereof I hereunto affix my signature in the presence oftwo witnesses.

CECIL L. SAUNDERS.

Witnesses:

ALBERT H. BATES, B.- W. BROOKETT.

